he was eventually diagnosed with multiple learning disabilities and attention-deficit disorder and had to remain in a classroom for the learning disabled throughout his public school. >> narrator: fisher's organization lobbied successfully for laws that promote vaccine safety. today, a much safer vaccine has replaced dpt. the laws also created a special vaccine court to evaluate and compensate victims of adverse vaccine side effects. >> vaccines are pharmaceutical products that inherently carry a risk of injury or death. and that risk can be greater for some than others, particularly for... for genetic or biological high-risk reasons that have... some of which have been identified and some which have not been identified. >> shame on you, shame on you... >> narrator: surveys show about one-third of americans worry about rare but serious vaccine side effects. but one fear has come to dominate the vaccine war, the fear that vaccines are responsible for autism, a mysterious disorder that appears to be on the rise. the theory that vaccines could cause autism has become well known, partly du